An additional 50 people have been sickened by the same Salmonella "Saintpaul" infection in Arizona, California, Colorado, Connecticut, Idaho, Illinois, Indiana, Kansas, Oklahoma, Oregon, Utah, Virginia, Washington and Wisconsin, the federal Centers for Disease Control and Prevention reported.

Investigators are trying to determine if raw tomatoes also are responsible for the illnesses in those states, said Arleen Porcell, a CDC spokeswoman.

The source of the tomatoes responsible for the illnesses has not been pinpointed, but health officials in Texas and New Mexico said none of them was grown in those two states.

At least 23 people have been hospitalized, and no deaths have been reported, she said.

Patients ranged in age from 1 to 82.

The rarity of the Saintpaul strain and the number of illnesses "suggest that implicated tomatoes are distributed throughout the country," she said.